Dump truck



July 24, 1928.

w. JANSSEN DUMP TRUCK Filed 0017'. 26, 1927 WITNES 2 Sheets-Sheet 1 Maia M1 INVENTOR ATTORNEY July 24,1928. 1,678,569

. W. JANSSEN DUMP TRUCK Filed Oct. 26, 1927 2 Sheets-Sheet 2 o o o R w I %Zliam cfalrwaen ATTORNEY WITNESS Patented July 24, 1928.

UNITED STATES WILLIAM JANSSEN, QF LAGRANGE, TEXAS.

DUMP TRUCK.

Application filed October 28, 1927. Serial No. 228,887.

This invention relates to a dumptruck, the general object of the invention being to provide means whereby the body will move to dumping position aftera latch has been is moved to releasing position and the truck started forwardly.

Another object of the invention is to pro vide rollers and tracks on the chassis and body for enabling the body to ha-ve'rolling in movement on the chassis under the action of gravity, with means for preventing the body from entirely leaving the track.

This invention also consists in certain other features of construction and in the l combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to 'the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and inwhich Figure 1 is an elevation showing a part of the truck and showing the body in normal position.

Figure 2 is a view of the opposite side with parts in section, and showing the body 30 in dumping position.

Figure 3 is a section on line 33 of F1gure 2.

Figure 4 is a section on line 1-4- of Figure 1.

Figure 5 is a section on line 55 of Fig ure 2.

In these views, 1 indicates a pair of beams arranged on the chassis A of the truck, one at each side thereof, and these beams slope downwardly from the front to the rear. Track forming strips 2 areplaced on the front portions of the beams at the tops thereof and similar strips 3 are placed on the front portions of the beams at the outer sides thereof. A bracket 4C is fastened to the upper edge of each beam adjacent the rear thereof and a roller 5 has its pintle 6 journaled in each bracket and ina part of the beam. A horizontally arranged shaft 7 has its ends jo-urnaled in the rear portions of the beams and rollers 8 are carried by the ends of the shaft.

The body B has its side beams 9 each provided with the track forming strips 10 and a 11 which are arranged on the rear portions (ill of a beam, the strip 10 being flat and the strip 11 being of channel shape and having its ends restingupon the ends of the strip 10. The ends of the shaft 7 carrying the rollers 8 extend into the spaces formed by the strips 10 and 11, with the rollers engaging said strips. Thus the body has sliding movement on the chassis, the movement being limited by the rollers 8 striking thevertical portions of the strips 11. The beams 9 have their rear inner portions covered by the strips 12 which are engaged by the rollers Brackets 4: are arranged at the front. ends of the beams Qand depend therefrom and carry the rollers 5 and their pintles 6', these rollers 5 engaging the strips 3 on the beams 1.

A shaft 13 is fastened to the front ends of the beams 9 and carries the rollers 14: at its ends for engaging the strips 2 on the beam 1. A keeper 15 is arranged on a cross piece 16 attached to. the front ends of the beams 1 and a latch lever 17 at the front of the body has its latch end adapted to engage the keeper to hold the body in normal position, as shown in Figure 1. hen this latch lever is moved by the driver to releasing position andthe truck started: up, the body will move rearwardly down the: sloping track formed by the beams 1 until it-reaches a certain point, when it will tilt, as shown in Figure 2, this tilting action being limited by the rollers on the shaft 7 striking the front ends of the strips 11 and by chains 18 which connect the front end of the body to a cross piece 19 which is placed under the ends of the beams 1. Thus the body will be in dumping position and the load will drop therefrom.

I also provide an end gate 20 whichis held in closed position, when the body is in normal position, by a latch 21 pivoted to the rear end of the body and normally held in latching position by a spring 22. This latch is moved to releasing position as the body moves to dumping position by means of a cable 23 having one end fastened to the inner end of the latch and its other end to the beam 19, the cable passing over a pulley 24 carried by the body. As the body moves to dumping position, the slack of the cable is taken up so that it pulls upon the latch 21 and moves the same to releasing position so that the end ate can swing outwardly and thus permit the load to drop from the body. The chains 18 are connected together by a spring 18 which acts to take up the shock caused by the checking of the dumping action of the body.

From the foregoing it will be seen that the body will move to dumping position under the action of gravity when the front latch is released and that the movement of the body is a smooth one due to the action of the rollers, and these rollers and the tracks forming strips also prevent wear between the parts. As soon as the body starts to tilt, the end gate will be opened. Thus the dumping action is practically automatic and requires no effort on the part of the operator.

It is thought from the foregoing descrip tion that the advantages and novel features of my invention will be readily apparent.

'I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. A truck having a rearwardly and downwardly sloping track thereon, a shaft at the rear end of the track having rollers thereon, a body, track forming members at the rear of the body with which the rollers on the shaft engage, some of said members having upwardly extending parts forming stops for the rollers, a shaft at the front end of the body having rollers thereon engaging portions of the track of the truck, vertically arranged rollers carried by the body for engaging portions of the track on the truck and vertically arranged rollers on the track forming part of the truck for engaging portions on the body.

2. A truck having a rearwardly and downwardly sloping track thereon, a shaft at the rear end of the track having rollers thereon, a body, track forming members at the rear of the body with which the rollers on the shaft engage, some of said members having upwardly extending parts forming stops for the rollers a shaft at the front end of the body having rollers thereon engaging portions of the track of the truck, vertically arranged rollers carried by the body for engaging portions of the track on the truck, vertically arranged rollers on the track forming part of the truck for engaging portions on the body and means connecting the front end of the body with part of the chassis for limiting the dumping movement of the body.

3. A truck having a rearwardly and downwardly sloping track thereon, a shaft at the rear end of the track having rollers thereon, a body, track forming members at the rear of the body with which the rollers on the shaft engage, some of said members having upwardly extending parts forming stops for the rollers, a shaft at the front end of the body having rollers thereon engaging portions of the track of the truck, vertical- 1y arranged rollers carried by the body for engaging portions of the track on the truck, vertically arranged rollers on the track forming part of the truck for engaging portions on the body, means connecting the front end of the body with part of the chassis for limiting the dumping movement of the body, such means comprising a pair of chains and a spring connecting the chains together.

In testimony whereof I affix my signature.

WILLIE J ANSSEN. 

